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Machine Learning in the Classification of Pediatric Posterior Fossa Tumors: A Systematic Review

Author(s)
Yearley, Alexander G.; Blitz, Sarah E.; Patel, Ruchit V.; Chan, Alvin; Baird, Lissa C.; Friedman, Gregory K.; Arnaout, Omar; Smith, Timothy R.; Bernstock, Joshua D.; ... Show more Show less
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Abstract
<i>Background</i>: Posterior fossa tumors (PFTs) are a morbid group of central nervous system tumors that most often present in childhood. While early diagnosis is critical to drive appropriate treatment, definitive diagnosis is currently only achievable through invasive tissue collection and histopathological analyses. Machine learning has been investigated as an alternative means of diagnosis. In this systematic review and meta-analysis, we evaluated the primary literature to identify all machine learning algorithms developed to classify and diagnose pediatric PFTs using imaging or molecular data. <i>Methods</i>: Of the 433 primary papers identified in PubMed, EMBASE, and Web of Science, 25 ultimately met the inclusion criteria. The included papers were extracted for algorithm architecture, study parameters, performance, strengths, and limitations. <i>Results</i>: The algorithms exhibited variable performance based on sample size, classifier(s) used, and individual tumor types being investigated. Ependymoma, medulloblastoma, and pilocytic astrocytoma were the most studied tumors with algorithm accuracies ranging from 37.5% to 94.5%. A minority of studies compared the developed algorithm to a trained neuroradiologist, with three imaging-based algorithms yielding superior performance. Common algorithm and study limitations included small sample sizes, uneven representation of individual tumor types, inconsistent performance reporting, and a lack of application in the clinical environment. <i>Conclusions</i>: Artificial intelligence has the potential to improve the speed and accuracy of diagnosis in this field if the right algorithm is applied to the right scenario. Work is needed to standardize outcome reporting and facilitate additional trials to allow for clinical uptake.
Date issued
2022-11-15
URI
https://hdl.handle.net/1721.1/146618
Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Publisher
Multidisciplinary Digital Publishing Institute
Citation
Cancers 14 (22): 5608 (2022)
Version: Final published version

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